omniRAN Network Function Virtualization Date: 2016-03 Authors: Name Affiliation Phone Email Yonggang Fang ZTETX Inc yfang@ztetx.com Zhendong Luo CATR luozhendong@catr.cn Xia Shen shenxia@catr.cn Notice: This document represents only the views of the participants listed in the ‘Authors:’ field above. It is offered as a basis for discussion. It is not binding on contributors, who reserve the right to add, amend or withdraw material contained herein. Copyright policy: The contributor is familiar with the IEEE-SA Copyright Policy <http://standards.ieee.org/IPR/copyrightpolicy.html>. Patent policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: <http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>. Abstract This contribution discusses the network function virtualization for omniRAN.

Background Why omniRAN needs NFV NFV provides the unified software defined platform for network functions virtualization to encapsulate the hardware difference. Manage a large number of APs and STAs efficiently and effectively Broadband access in dense area such as public venues Massive Internet of Things with a large number of APs. Consolidate management of multiple local WLANs offered by single service provider Allow multiple service providers to share RAN and use same platform to manage different hardware resources. Optimize the network according to the traffic load and service requirement dynamically

omniRAN Network Reference Model Access Router Access Network Terminal Terminal Interface R1 Coordination and Information Service R2 R10 R8 AN Ctrl TE Ctrl NFV based Network Management System Access Router Interface R3 R4 AR Ctrl R9 NA Backhaul R6 R5 R7 R11 IEEE 802 Access Network Core NW Functions

omniRAN Network Reference Model Functional Entities and Interfaces Node of Attachment Wireless interfaces: support multi-band, multi-mode 802.11 protocol to communicate with wireless devices may integrate with other radio technologies Backhaul Interfaces Ethernet based backhaul: for wired connection to other entities 802.11 based backhaul: for connection to other entities wireless AN Controller Provide the management and control function of omniRAN Network configuration and instantiation User data plane establishment Fault management and diagnosis

omniRAN Network Reference Model Functionalities Management Plane Functionalities Network configuration and instantiation Authenticating, controlling and managing IEEE 802.11 AN Fault diagnosis management accounting management, Control Plane Functionalities: service management, user traffic connection setup, mobility management, etc. Data Plane Functionalities: carrying, sequencing, tunneling, forwarding the user data traffic between the Core network, AN

NFV for omniRAN NFV Services management plane Resource plane CP function UP function AN configuration and instantiation Resource plane AN resource TE resource CP function UP TE Config AN Network Function Virtualization AN resource Cloud node TE TE Ctrl AN Ctrl AR Ctrl R8 R9 Terminal Interface R5 R7 Access Router Interface Operator Network NA Backhaul R1 R6 R3 Terminal Access Network Access Router

NFV Management and Orchestration omniRAN Protocols Protocol Stacks Network Functions: BSSM-F: BSS Management Function FDM-F: Fault Diagnosis Management Function NFV Management and Orchestration (NFV-MANO) Manage and control the VNF in multiple levels. For IEEE802.11 MAC/PHT, it can manage through IEEE802 layer management NFV Management and Orchestration FDM-F BSSM-F etc VNF Layer LLC LLC LLC LLC 802.11 MAC 802.11 MAC 802.11 MAC 802.3 MAC 802.3 MAC 802.3 MAC NFVI Layer 802.11 PHY 802.11 PHY 802.11 PHY 802.3 PHY 802.3 PHY 802.3 PHY STA RAN BH Core

References References IEEE802-1cf-d0-0 NGMN 5G White Paper: https://mentor.ieee.org/802.11/dcn/15/11-15-0547-00-0wng-ngmn-5g-white-paper-overview.pptx omniran-16-0012-00-CF00-ethernet-oam-survey-and-introducing-nms